Heavy-load combined train cooperative communication consistency braking control method and device

By constructing a Franklin linearized model and distributed model predictive control, the problem of insufficient consistency in braking control of heavy-haul combined trains was solved, thereby improving safety and comfort and extending the service life of the carriage connection device.

CN117429396BActive Publication Date: 2026-06-12CENT SOUTH UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CENT SOUTH UNIV
Filing Date
2023-06-09
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing control strategies for heavy-haul combined trains fail to effectively consider the nonlinear coupling between adjacent carriages, resulting in insufficient consistency in braking control and affecting carriage structure and passenger comfort.

⚗Method used

A Franklin linearized model is constructed, and a cooperative braking controller is designed using a distributed model predictive control method, combining the force and motion information of each carriage of the train. The distributed braking system achieves the goal of consistent braking, and the Franklin model is used to predict the future dynamic behavior of the train and optimize the distribution of braking force.

🎯Benefits of technology

It improves safety and ride comfort during train braking, reduces interaction forces between carriages, and extends the lifespan of carriages and connecting devices.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a heavy-load combined train cooperative communication consistency braking control method and device. In the train braking process, the braking controller combines the strict constraints of the actuator and the relative displacement between the carriages, and adopts a distributed model predictive control method to design a cooperative braking controller according to the state variables such as the speed, acceleration and position information of each sub-node; the train consistency braking force control method is designed to solve the performance index of minimizing the speed inconsistency and the relative displacement difference between the carriages. The application reduces the relative displacement and the speed inconsistency between the carriages during train braking, reduces the size of the train hook force during braking, effectively reduces the damage of the carriage structure, and improves the comfort during train driving.
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